Ilia s



To 'all whom itjmay concer/i:

UNITED STATES 'lA'rENir ormoni-.q j.

Vma a. neuw-N, or -111orrcxn'rmt,A Rnornc istanti.l "f

' SAW-TOOTH.

, specification of Letters Patent No, 31,073, dated-January s, 19e-1.

.l always a. g little in advz'tnoe-ofr the plan'- Bc itknown tlm-t 'LIna S. .Bmw-N;- of ingr tooth."1 Ae the latter enters the'kerf'thelilopkinton, in the county of Washington; `curved 'portions of itsetflgeo, f. in'nnediatelv and State of Rhode Island, have invented a texterior .to tht'l tlnttenededge act as gouges new and ImprovedSuw'.l`ooth for llaning' i widening the aperture, and partly' snmQfh..

Lumber at the Sanie- '1`inie that .It Sorted;l t ingr .it. At thenextrevolntlo'n -t-he lumber and fl do hereby declare that-the 'followini has been fed' forward sufficiently t0 enlise is a full'` dealandexactJ description of the the gougegportion a.' f. to out aivav n newsante, reference beingr had tothe accompany. portionwhile the planeportions ELF. pass' ing drawings. in wlnchw' f inmediately.in the pathdescribed hy e, 'f1 Figure 1 is a. view of a portionl of a. cir-A at thej wer-edingrevolution. smoothingo'I-t. cular saw with my improved toothattached. Samy' irregularities which they may have-left. 65".-v l and,Fig. 2 is un -edge view of the tooth on i andgii'f'ing the surface. uponeach side ofthe a larger scale. t 1, lt'erf a smooth and finishedappen-rance. The Similar letters of reference indicate like;l cutteractingr on -hoth sides at eixee'fhas ni. parts in all the dra\\"in, .f:s. t .i t.endenc':.1 to spring theI sai' and cause ridges By thisdevice, l am enabled to do hotter j in the work. and as it hears for adistance 'to work than by any heretofore known to me, behind the cuttingedge all spring is prethe Stulf leaving the saw in as Smooth a con jrented ,eren when passing* through knots or dition as a hoard which has'been passed .f other places of nnetpial hardness. 'lheogee through anordinari' planing,y machine. or S 'forni allows the chips to pass.freely lfo enable others skilled in the artI toinalte i through withoutdogg-ing from each cutter 75 and use. my invent-ion f will proceed todewhile it gives u very stili' tooth with so little scribe itsconstruction and operation by the i weight as not to disturb the balanceof the aid oi the drawine's and ot the letterel of Saw. reference markedtiereon. l I. ani aware that certain forms ofjsnvt' l A is an ordinarireirenlar saw with teeth teeth havel'ieen naed for the purpose of '80' Bin an y proper form. planing lumber at the same time that it is Mrimproved'-tooth C is made separately i saweth and I do not claim broadlythe enr and is fastened in the saw by n dovetail i ilt'iynlent of a Sawtooth forsueh a purpose -joint and a landingl screw c, in the mannerl lhut,'. l t represented, which is 'familial-to sawyers. l Having-nowfully described my improved 8 5 That portion of my improved tooth whichsaw tooth what I eininrnsirnew therein and projects beyond the, saw issii-'aged into. a i desire to serure blt? Letters atent is, formsomewhat like the letter S, but with The employment '-in saws of one ormore flattened sides as is'more' clearly shoe-nin planing teeth haring aform substantially j Fig'. vEach hait of the edge is' beveled as hereint'leseribed.-'that iste-'say having a 9o on its hollow side, and theexterior of each i section at right. angles tothe iine-ofinoton curve isflattened, `tor a short distance, par-l t of a form analogous to theletters, so as to. 4 nllcl to the planeof the sav as shown atthe lpresentseparate cutting surfaces for eaeli letters E, E. The width ofthis liatt-ened side' of the kerf so nearly opposite as to i spaceshonidbe variedaccording to thennrnsupport each other', and so arranged that!945, her ot' my improved teeth which are used i each ofthe t-woeuttingedges has a separate in the saw, hut wht-.rebut one is used,which tand independent. passage for the. esta-tpe of i find to hesutiicient, it should he n'mde a i v`its chips. snl'istuntally as hereinset forth, little more tzhunxetpmi to the amount 'of feed i In testimonywhereof I have hereunto setat each rtwolnt-ion. my name in thepresenceof two subscribing The.' operation as ft lhn\'s:'l`lie 'tooth witnesses.heine; placed in tht sun' with 'its e.\terioi ,y L Y a little within thevpoints of the outting= HLA h' BROMA' teeth as shown in Fig. l. and thehunher Witnesses:

Cuantas BROWN,

being ,fed thereto the cutting teeth acting? NATHAN C, thrown'.

in the usual manner open a narrow kert't

